diff --git a/lib/CodeGen/CMakeLists.txt b/lib/CodeGen/CMakeLists.txt
index ca4b31c6377..89aebd82a12 100644
--- a/lib/CodeGen/CMakeLists.txt
+++ b/lib/CodeGen/CMakeLists.txt
@@ -16,6 +16,7 @@ add_llvm_library(LLVMCodeGen
   LiveStackAnalysis.cpp
   LiveVariables.cpp
   LowerSubregs.cpp
+  MachOCodeEmitter.cpp
   MachOWriter.cpp
   MachineBasicBlock.cpp
   MachineDominators.cpp